The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 23, 2008
Filed:
Jun. 14, 2006
Tomoki Deguchi, Osaka, JP;
Katsunari Koyama, Osaka, JP;
Tomoki Deguchi, Osaka, JP;
Katsunari Koyama, Osaka, JP;
Keyence Corporation, Osaka, JP;
Abstract
A circuit substrate is divided into a light emitting circuit substrateand a light receiving circuit substrateand they are disposed in a first casingin a two-tier fashion, and the light emitting circuit substratewhich is disposed on an upper side, is overlapped with at least a part of an optical systemBy this means, it is possible to obtain a wider range mounting surface in a small space, and therefore, it is possible to miniaturize a switch main body. In addition, it is possible to miniaturize the switch main body without miniaturizing the optical systemmore than necessity, simply by changing a disposal configuration of components other than components of the optical systemin the switch main body, and therefore, it is possible to prevent lowering of detection accuracy which goes with miniaturization of the optical systemand it is possible to detect an object with high accuracy.